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Asphalt aqueous emulsion and method for preparation

A water emulsion and bitumen technology, which is used in water treatment and refining, tar bitumen/petroleum bitumen/natural bitumen processing, petroleum industry, etc. problem, to achieve the effect of easy control, uniform dispersion and simple production process

Active Publication Date: 2005-07-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the butane and pentane solvent deasphalting process can obtain more light oil, the soft components of asphalt left after processing are too small, which increases the softening point of asphalt, resulting in the utilization and utilization of high softening point asphalt. It is very difficult to deal with. Usually, many light components are recalled and treated as heavy oil fuel, but this method will cause a waste of light oil resources.

Method used

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  • Asphalt aqueous emulsion and method for preparation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] 620 grams of butane solvent deoiled asphalt raw material (its properties are shown in Table 1) and 88 grams of heavy deasphalted oil were blended into a mixture, and the temperature of the mixture was raised to 200°C. In 281.2 grams of water, add 4 grams of emulsifier sodium oleamide methoxybenzene sulfonate (molecular formula is C 25 h 40 NNaO 5 S, the brand is MA, produced by Shanghai Auxiliary Factory, the same below) and the mixture of sodium lignosulfonate (the brand is L-1, produced by Fushun Petrochemical Research Institute) (the weight ratio of the former to the latter is 3 : 1), 5 grams of additive NH 4 Cl (produced by Beijing No. 2 Chemical Plant) and 1.8 g of stabilizer polyvinyl alcohol (brand name 1788, produced by Beijing Organic Chemical Plant) were dissolved to obtain an aqueous solution, and the aqueous solution was heated to 75°C. The above mixture and aqueous solution were thoroughly mixed with a homogenizer (model M50, produced by Shanghai Qidong ...

Embodiment 2

[0060] 550 grams of pentane solvent deoiled asphalt raw material (its properties are shown in Table 1) and 150 grams of catalytic cracking oil slurry were blended into a mixture, and the temperature of the mixture was raised to 240°C. In 280.5 grams of water, add 15 grams of emulsifier C18 alkyl sodium sulfate (produced by Jinling Petrochemical Nanjing Alkyl Benzene Plant), 3 grams of auxiliary agent K 2 SO 4 (produced by Beijing No. 2 Chemical Factory) and 1.5 grams of stabilizer polyvinyl alcohol (the brand is 0486, produced by Beijing Organic Chemical Factory) were dissolved to obtain an aqueous solution, and the aqueous solution was heated to 80°C. The above mixture and aqueous solution were thoroughly mixed with a homogenizer to obtain an asphalt water emulsion product, the composition and properties of which are shown in Table 4.

[0061] The product has no precipitation within 7 days. Although it has been placed for more than half a year, precipitation or stratificatio...

Embodiment 3

[0063] 650 grams of propane solvent deoiled asphalt raw material (see Table 2 for its properties) was heated to 140°C. In 329 grams of water, add 15 grams of emulsifier C18 alkyl diethyl hydroxyethyl ammonium nitrate (the trade mark is SN, produced by Shanghai auxiliary agent factory), 2 grams of auxiliary agent Mg 2 SO 4 (produced by Beijing No. 2 Chemical Factory) and 4 grams of stabilizer cellulose (produced by Beijing Synthetic Detergent Factory) were dissolved to obtain an aqueous solution, and the aqueous solution was heated to 60° C. The above asphalt raw materials and aqueous solution were fully mixed with a colloid mill (model W4, produced by Wenzhou Colloid Mill Factory, the same below) to obtain an asphalt water emulsion product. The composition and properties of this product are shown in Table 4.

[0064] The product has no precipitation within 7 days. Although it has been placed for more than half a year, precipitation or stratification will gradually appear. How...

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Abstract

The invention disclose an asphalt aqueous emulsion and method for preparation, wherein the aqueous emulsion comprises 40-78.7 wt% of asphalt raw material, 1-20 preferably 1-15 wt% of soft component, 20-50 wt% of water, 0.1-4 wt% emulsifying agent, 0.1-6 wt% of adjuvant and 0.1-4 wt% of stabilizing agent.

Description

technical field [0001] The invention belongs to an asphalt water emulsion and a preparation method thereof. Background technique [0002] Solvent deasphalting process is one of the important means in the crude oil processing process of refinery. Although the butane and pentane solvent deasphalting process can obtain more light oil, the soft components of asphalt left after processing are too small, which increases the softening point of asphalt, resulting in the utilization and utilization of high softening point asphalt. It is very difficult to deal with. Usually, many light components are recalled and treated as heavy oil fuel, but this method will cause a waste of light oil resources. If the asphalt with high softening point is made into emulsified fuel, it not only solves the difficult problem of its utilization and disposal, but also can be used to replace a part of heavy oil fuel, so that the utilization of heavy oil is more reasonable....

Claims

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Application Information

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IPC IPC(8): C10C3/00C10G31/08
Inventor 王京军祖德光龙军黄伟祈车泽永全军
Owner CHINA PETROLEUM & CHEM CORP
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